Preparation and characterization of an ion imprinted polymer for selective separation of Cr(III) ions from water

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Abstract

Ion imprinted polymer (IIP) is a technique for creating selectivity through binding cavities on the surface of the adsorbent. The selectivity of polymer adsorbents is based on the coordination geometry, ion coordination numbers, charge, and polymer size. In this research, IIP with chromium ion (Cr3+) as metal template, gallic acid (GA) as ligand, and methyl methacrylate (MMA) as functional monomer was successfully synthesized via bulk polymerization method with ethylene glycol dimethyl acrylate (EGDMA) as crosslinker and azo-bis-isobutyronitrile (AIBN) as initiator. Mole ratio of GA and MMA was observed in this study. The imprinted Cr(III) ion was removed from polymer matrix using 0.1 M HNO3 for 46 h. The structure of Cr-IIP was characterized by FTIR, SEM-EDX and TGA. The optimum absorption of Cr(III) ions was achieved at pH 5 and 120 min contact time. The results indicated that adsorption mechanism followed the Freundlich equation with R2 0.9927 and the maximum adsorption capacity was 170.07 mg/g. The relative selectivity factor of Cr/Fe; and Cr/Ag for IIP is 4.07 and 4.7, respectively. Furthermore, the synthesized Cr-IIP was applied for preconcentration study before analysis of Cr(III) in real sample combined with AAS with % recovery for upstream, middle stream, and downstream are 121.37 %; 110.26 % and 110.87 %.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
EditorsTerry Mart, Djoko Triyono, Tribidasari Anggraningrum Ivandini
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420014
DOIs
Publication statusPublished - 1 Jun 2020
Event5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019 - Depok, Indonesia
Duration: 9 Jul 201910 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2242
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
CountryIndonesia
CityDepok
Period9/07/1910/07/19

Keywords

  • adsorption
  • Ion imprinted polymer
  • polymerization
  • selective separation

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    Izzataddini, A., Nurani, D. A., Rahayu, D. U. C., & Abdullah, I. (2020). Preparation and characterization of an ion imprinted polymer for selective separation of Cr(III) ions from water. In T. Mart, D. Triyono, & T. A. Ivandini (Eds.), Proceedings of the 5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019 [040036] (AIP Conference Proceedings; Vol. 2242). American Institute of Physics Inc.. https://doi.org/10.1063/5.0008284